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2011-06-07 07:30:00

CARY, N.C., June 7, 2011 /PRNewswire/ -- Laser Eye Center of Carolina (LECC) announced today that it has become the first and only medical facility in North Carolina to offer patients the benefits of the iFS femtosecond laser for corrective vision procedures such as corneal transplants, cataract surgeries and LASIK. A fifth-generation IntraLase laser, the iFS is a significant upgrade to its predecessors, offering a faster, more precise incision and the ability to cut complex shapes on the...

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2011-02-18 07:10:00

The invention of the laser -- more than 50 years ago -- that has turned up in everything from Compact Discs to laser pointers, now has a new enemy: the "antilaser" -- the first device capable of trapping and terminating laser beams. The device was created by a team of researchers from Yale University and is capable of absorbing an incoming laser beam entirely. But the antilaser was not developed as a defense against high-power laser weapons, said the researchers. While such a device seems...

2010-09-21 20:36:44

Laser ablation is well known in medical applications like dermatology and dentistry, and for more than a decade it has been used to vaporize materials that are difficult to evaporate for high-tech applications like deposition of superconductors. Now researchers in the Journal of Applied Physics, which is published by the American Institute of Physics have studied the properties of femtosecond laser ablation plumes to better understand how to apply them to specialized films. Salvatore Amoruso...

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2010-06-10 08:46:48

In an advance that sounds almost Zen, researchers at the National Institute of Standards and Technology (NIST) and JILA, a joint institute of NIST and the University of Colorado at Boulder, have demonstrated a new type of pulsed laser that excels at not producing light. The new device generates sustained streams of "dark pulses""”repeated dips in light intensity"”which is the opposite of the bright bursts in a typical pulsed laser. Despite its ominous name, the dark pulse laser is...

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2010-05-03 10:54:39

Painted-over murals were thought to be irretrievably lost because conventional methods are seldom suitable to rendering the hidden works visible without causing damage. Research scientists now aim to reveal the secrets of these paintings non-destructively using terahertz beams. Many church paintings are hidden from sight because they were painted over centuries ago. In the 16th century, for instance, Reformation iconoclasts sought to obscure the religious murals, while in later times the...

2009-12-08 20:08:31

University of Rochester scientists discover that laser technique used to change the colors of metals could have important implications for medicine University of Rochester optics professor Chunlei Guo made headlines in the past couple of years when he changed the color of everyday metals by scouring their surfaces with precise, high-intensity laser bursts. Suddenly it was possible to make sheets of golden tungsten, or black aluminum. A recent discovery in Guo's lab has shown that, beyond the...

2009-09-01 13:28:07

Predatory fish are well aware of the problem: In a swarm of small fish it is hard to isolate prey. A similar situation can be found in the microcosm of atoms and molecules, whose behavior is influenced by "swarms" of electrons. In order to achieve control over single electrons in a bunch, ultrashort light pulses of a few femtoseconds duration are needed. Physicists of the Max Planck Institute of Quantum Optics (MPQ) in Garching and chemists of the Ludwig-Maximilians-Universität (LMU) in...

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2009-07-16 02:42:13

AFOSR-funded researchers at the University of Rochester are using laser light technology that will help the military create new forms of metal that may guide, attract and repel liquids and cool small electronic devices. Dr. Chunlei Guo and his team of researchers for the project discovered a way to transform a shiny piece of metal into one that is pitch black, not by paint, but by using incredibly intense bursts of laser light. The black metal created, absorbs all radiation that shines upon...

2009-06-09 09:54:16

U.S. physicists are using an ultra-fast laser to create metal that can attract, repel and guide liquids. University of Rochester scientists said they are able to create a simple slab of metal that lifts liquid using the same principle as do trees to lift water from the ground -- capillary action -- but at a much faster rate, the researchers said. Associate Professor Chunlei Guo, who led the study, and researcher Anatoliy Vorobyev, use an ultra-fast burst of femtosecond laser light to change...

2009-06-02 14:25:04

Ultra-fast laser makes metal that attracts, repels and guides liquidsIn nature, trees pull vast amounts of water from their roots up to their leaves hundreds of feet above the ground through capillary action, but now scientists at the University of Rochester have created a simple slab of metal that lifts liquid using the same principle"”but does so at a speed that would make nature envious.The metal, revealed in an upcoming issue of Applied Physics Letters, may prove invaluable in...


Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'